Phonograph-record-cleaning brush



J. L. MlKovrrs ET AL PHONOGRAPH RECORD CLEANING BRUSH Filed Nov. 15

Jifa

Patented July 29, 1924.

OHN mxovrrs Ann mam: rErnnsE'LL, ornnsr rIr'rsBtfiB-eH, imimsyr faaaPHONOGRAPH-RECORD-OLEANING Bnusj -L Application filed November. 1 5,1923. SeriaI No. 674,854.

To allwhomz't may concern:

"'"B,e"it"known that we, JorIN L. Mr xovrrs and FRANK Piirnasnnncitizensof Austria, residing atEast'Pittsburgh, in the county of Allegheny-andState of Pennsylvania, have invented certain new and useful Improvementsin Phonograph-Record-Clean-, ing 'Brushes,'of which the following is aientpos'ition'with respect to the turn-table tically,

of the machine and which inay be manually v V V 'elevationalview of astopunern-ber employed infoved into its operative position and'beretained in such position without requiring the "attention of. theoperator of the ma hine.

A' furthe'r 'objeotof the invention is' to provide a brush oftheabove-nientioned type which may be moved into aninoperativeposition," ourdr the, way of'the operator of thg lniachine andlth'erecord 'carryiiig tum Other objects and advantages of the inventionwill be apparent during the course of the following description.

r In the accompanying drawing "forming a of this specification and inwhich like in'umerals are employed to designate like parts throughoutthe same,

' Figure'l is a side ele'vational view of the phonograph record"cleaning brush embodying this invention with the said brush in itsoperative position, V s w Figure 2is a top plan view of Figure 1, Figure3"is an end elevational view of the apparatus shown in Figures 1 and 2,Figure4 is an end elevational view. of the brush support with thebrushar'n'i nioved into a position'at right angles to the holder "armand with the holder arm extending ver- "Figure 5 is a side elevationalview ofthe brush arm and brush material carried therey; I t a Figure 6isa top plan view ofF-i'gure 5, Figure 7 is an lenfd elevational view *ofti retv.

- -Figure 8 is a top plan view of the holder 3 7m, I 1

'F igure 9 is a side elevational view of the arm-shown in Figure 8-, T

i FigurelO is an end elevational View; of the arm shown: in Figures 8a'ndl9,

Figure 11 illustrates two side elevational views of a latch inemberemployed for retaining the brush inits operative position,

Figure 12 illustratestwo side elevational views and a top plan view o'fa toothed bar carried by the holder arm andadapted to be engaged by thelatch meinber for retainingthe' Brush in its operative position, andFigure 13" illustrates an endand a side position for carrying the brushinto .its

inoperative position;

In the drawing, whereinfor the purpose of illustration is shown apreferred embodiment of this invention, the nu'i'neral :5'designates thebrush support :in its entirety and the numeral 6 designates the brush inits en- The brush support embodies a base plate -7 of substantiallyrectangular formation and having fastener receiving openings 8 which areemployed forsecuringthe support to the stationary table of aphonograph-ina convenient position with respect to the turntable. 1Carried'by'the upper face' of the" base plate 7 i and projecting"vertically" therefrom in spaced relation to each othenzare the uprights9 which are provided with thetransversely aligned cars 10 havingopenings 11 for-med therein, as illustrated in" Figures" 1 and 2. An endwall 1 2 is formed integrally with the adjacent'edges o'f 'the spacedup-"right'sIQ and is intended tobe' positioned adjacen-t the peripheraledgeoff the turntable of the phonograph with which this'rec'ord cleaningbrush is employed; I

The brush in its entirety consists of a holding arnij 13 having anenlarged'tubular bearing portion 14 position substantiallyiintermediateits ends which'is adapted for bethe said views being takenaatf rightangles to I each other, i

. e si ne 19 ew l frh ehf positioned within the openings 11 formed inthe ears 10 of the uprights 9. By inspecting Figures 8 to 10 inclusive,it will be seen that this holder arm 13 is cut away at 1ts outer end, asat 16 for forming one portion of an overlapping joint with the brushcarrying arm which will be described at a later point. This cut awayportion 16 is curved 'atits outer end 17 and at the shoulder portion 18as illustrated. The cut awayv portion 16 is also provided with anaperture 19 which is adapted for, receiving the means for connecting theholder arm and brush arm and which willbe described at a; later point;Adjacent to the curved shoulder 18, there is formed a pair of spacedopenings 20, the utility of which will be described when the holdingmeans for the arm is discussed in detail. The inner end of the holderarm 13 is provided with a counter sunk opening 21 which is adapted forreceiving the screw element 22 employed for securing one end of thetension spring 23 to the said holder arm. This tension spring isconnected at its lower end, as by the'bolt 24, to theiend wall 12 of thebrush support. 7 i x 'InFigures 5 to 7 inclusive, there is illustrated.thebrush arm 25 having suitably sccuredto the lower face thereof; thebrush material 26 which may be felt, hair, silk, etc. The innerend ofthe brush arm 25 is cut away, as at 27 and is provided-with an, in-

, wardly curved outer end .28 andinwardly 1 curved shoulder 29. forcoacting with the outwardly curved end 17 and outwardly curved shoulder18 and the cut away end 16 of the holder arm 13. This cut away-end 27 ofthe brush arm 25 is provided with an aperture .30 which is intended tovcooperate with the aperture 19 formed in the end 16 of the holder armforreceiving the connector bolt 31, illustrated in Figures 1 to 3inclusive, for pivotally connecting the said arms 13. and 25. It will beseen by inspecting Figures 1 and 2,

that the washers 32 are positioned upon op-w posite sides of theoverlapping joint formed 7 between the brush arm and holder arm and thata wing nut 33 is positioned upon the bolt 31 and is adapted for beingtightened to retain the arms 13 and 25 in their adjusted positions withrespect to each other.

It will be seen that the holder arm 13,

- due to the downward pull of the tension spring 23, will be normallyretained in a vertically extending position with the brush material 26out of engagement with the'turn table, not shown, of the phonograph. For

' the purpose of retaining the brush in its operative position,a'toothed bar 34 is connected to the under face of the holder arm 13 bythe screws 35 which passthroughthe ..openings 20 formed in said holderarm. This toothed bar is illustrated in Figures 1,

{3 .a'nd12; as having a top arm 34 and a depending arm 34 which isprovided with the teeth 34, the said depending arm 34" being of arcuateformation. Secured to the inner face of one of the uprights 9, as by thebolt 36, is a latch member 37 which is formed of spring material, suchas steel, and is provided with a substantially \l-shaped outer end 37which is adapted for selectively engaging the teeth 34 formed in thetoothed bar 34 for retaining the entire brush in its operative positionas illustrated in Figures 1 to 2 inclusive. vided with an aperture 37thru which a suitable means is inserted for connecting the same to thepush button 38 which is slidably positioned in an aperture 39 formed inthis upright 9 and provided for furnishing means for moving the latchmember 37 out of engagement with the toothed bar 34 to permit the brushto be swung upwardly by the tension spring 23. e

In Figures 1 to 3 inclusive and 13, there is illustrated a stop element40 which is provided with a reduced externally threaded end 41' that isadapted to be passed through a suitable opening formed in the end wall12 of the brush support 5 and to receive a nut 42tor retaining the saidstop in a position for placing the angular end 43 substantiallyvertically below the pivot .pin 15 carried by the aligned ears 10. Itwill be seen that this stop member 40 will limit the downward movementof the inner endot the holder arm 13 for causing the said arm to beretained in a vertical position when the latch member is not inengagement with the toothed bar. p

The operation of this phonograph record cleaning brush is as follows. InFigures l to 3 inclusive, the various elements are shown in theiroperative, positions and are in their proper positions for causing thebrush material 26 to engage the top surface of the phonograph record,not shown. It will be seen that the holder arm 13 and brush arm 25 areretained in longitudinal alignment by th bolt and wing nut 31 and 33respectively. The latch member 37 is in engagement with the proper tooth34 in the toothed bar 34 for retaining the arms 13 and 25 in asubstantially horizontally extending position and also for retaining theholder ar1n13 against the downward pull of the tension spring 23. Whenthe operator of the'phonograph desires to move the cleaning brush intoan inoperative position out of the way of the turn table, the bolt andwing nut 31 and 33 respectively are loosened and the brush arm 25 ispivoted to assume a position at right angles to the holder arm 13whereupon the wing nut 33 is again tightened upon the bolt 31 forretaining these arms in this fixed position. The push button 38 is thenoperated for disengagingv the latch member 37 from the teeth 34 of thetoothed bar 34 and the tension spring 23 will then pull downwardly uponthe inner end of the holder arm 13 for moving this arm into a verticalposition against the outer angular end 43 of the stop member 40. Theholder arm 13 and brush arm 25 will be in the positions shown inelevation in Figure 4. It will be very apparent to those skilled in theart that when the brush is again to be moved into engagement with thegrooved surface of the phonograph record, the arm 25 is moved intolongitudinal alignment with the holder arm 13 and retained in thisposition by the bolt and nut- 31 and 33 respectively. The said arms arethen moved into a horizontal position, against the tension of the spring23, and the teeth 34 will be moved downwardly over the substantiallyV-shaped end 37 of the latch 37 until the brush material is in itsproper operative position. The latch and toothed bar will retain the armin this adjusted position.

It is to be understood that the form of this invention as shown anddescribed is taken as a preferred example of the same, and that variouschanges in the shape, size,

and arrangement of parts may be resorted to without departing from thespirit of the invention or scope of the subjoined claims.

Having thus described the invention, we claim 1. In a phonograph recordcleaning brush of the type described, a support, a brush carrying armpivotally connected to said support, means for retaining said brushcarrying arm in a horizontally extending position, and means forswinging said arm into a vertically extending position when the arm isreleased by the aforesaid holding means.

2. In a phonograph record cleaning brush of the type described, a base,spaced uprights carried by said base, a brush carrying arm pivotallyconnected to said uprights, means associated with said arm and one ofsaid uprights for retaining the arm in a horizontal position, andresilientmeans for moving said arm into a vertically extending positionwhen said holding means is released.

In testimony whereof we afiix our signatures.

JOHN L. MIKOVITS. FRANK PETERSELL.

